Indicating a packet data unit session as unavailable
Apparatuses, methods, and systems are disclosed for indicating a packet data unit session as unavailable. One apparatus includes a processor that determines that at least one packet data unit session is unavailable. The apparatus includes a transmitter that transmits information indicating that the at least one packet data unit session is to be released.
1. An apparatus comprising a session management function (SMF), the apparatus comprising:
a processor;
a memory coupled with the processor, the memory comprising instructions executable by the processor to cause the apparatus to:
receive a first message indicating for the SMF to locally release a protocol data unit (PDU) session;
remove, by the SMF, context associated with the PDU session;
transmit a second message indicating to release the context associated with the PDU session; and
transmit a third message in response to the first message.
2. The apparatus of claim 1 , wherein the instructions are executable by the processor to cause the apparatus to:
receive, from an access and mobility management function (AMF), the message indicating for the SMF to locally release the PDU session.
3. The apparatus of claim 1 , wherein the instructions are executable by the processor to cause the apparatus to:
transmit, to a user plane function (UPF) associated with the PDU session, the second message indicating to release the context associated with the PDU session.
4. The apparatus of claim 1 , wherein the instructions are executable by the processor to cause the apparatus to:
locally release the PDU session without N1 or N2 signaling.
5. The apparatus of claim 1 , wherein the first message comprises a PDU session identifier (ID).
6. The apparatus of claim 1 , wherein the first message comprises a session release request.
7. The apparatus of claim 6 , wherein the session release request comprises a PDU session release request.
8. The apparatus of claim 1 , wherein the first message comprises a session update request.
9. The apparatus of claim 1 , wherein the first message comprises Nsmf_PDUSession_UpdateSMContext.
10. A method of wireless communication at a session management function (SMF), the method comprising:
receiving a first message indicating for the SMF to locally release a protocol data unit (PDU) session; and
removing, by the SMF, context associated with the PDU session;
transmitting a second message indicating to release the context associated with the PDU session; and
transmitting a third message in response to the first message.
11. The method of claim 10 , further comprising:
receiving, from an access and mobility management function (AMF), the message indicating for the SMF to locally release the PDU session.
12. The method of claim 10 , further comprising:
transmitting, to a user plane function (UPF) associated with the PDU session, the second message indicating to release the context associated with the PDU session.
13. The method of claim 10 , further comprising:
locally releasing the PDU session without N1 or N2 signaling.
14. The method of claim 10 , wherein the first message comprises a PDU session identifier (ID).
15. The method of claim 10 , wherein the first message comprises a session release request.
16. The method of claim 15 , wherein the session release request comprises a PDU session release request.
17. The method of claim 10 , wherein the first message comprises a session update request.
18. The method of claim 10 , wherein the first message comprises Nsmf_PDUSession_UpdateSMContext.
19. A non-transitory computer-readable medium storing code at a session management function (SMF), wherein the code comprises instructions executable by a processor to:
receive a first message indicating for the SMF to locally release a protocol data unit (PDU) session;
remove, by the SMF, context associated with the PDU session;
transmit a second message indicating to release the context associated with the PDU session; and
transmit a third message in response to the first message.
20. The non-transitory computer-readable medium of claim 19 , wherein the instructions are executable by the processor to:
receive, from an access and mobility management function (AMF), the message indicating for the SMF to locally release the PDU session.